Finding the Fourth Proportional to 37,724,542, 52,059,868.50 and 20,555,134

Step by Step Solution

1. Step 1: Write the proportion equation
   37,724,542 : 52,059,868.50 = 20,555,134 : x
2. Step 2: Convert to fraction form
   37,724,542/52,059,868.50 = 20,555,134/x
3. Step 3: Cross multiply
   37,724,542x = 52,059,868.50 × 20,555,134
4. Step 4: Simplify right side
   37,724,542x = 1,070,097,573,039,879
5. Step 5: Solve for x
   x = 1,070,097,573,039,879/37,724,542
6. Step 6: Final answer
   x = 28,366,085.21